linux-kernel - Re: [PATCH AUTOSEL 6.5 30/36] arm64: dts: qcom: sc8280xp-x13s: Add camera activity LED

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Message-ID: <ZQmh-DaBTwMuOLHe@hovoldconsulting.com>
Date:   Tue, 19 Sep 2023 15:28:24 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>, agross@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 6.5 30/36] arm64: dts: qcom: sc8280xp-x13s: Add
 camera activity LED

On Tue, Sep 19, 2023 at 09:06:54AM -0400, Sasha Levin wrote:
> On Tue, Sep 19, 2023 at 08:15:04AM +0200, Johan Hovold wrote:
> >On Mon, Sep 18, 2023 at 05:41:38PM -0400, Sasha Levin wrote:
> >> On Mon, Sep 11, 2023 at 08:33:02AM +0200, Johan Hovold wrote:
> >> >On Fri, Sep 08, 2023 at 03:28:41PM -0400, Sasha Levin wrote:
> >> >> From: Konrad Dybcio <konrad.dybcio@...aro.org>
> >> >>
> >> >> [ Upstream commit 1c63dd1c5fdafa8854526d7d60d2b741c813678d ]
> >> >>
> >> >> Disappointigly, the camera activity LED is implemented in software.
> >> >> Hook it up as a gpio-led and (until we have camera *and* a "camera on"
> >> >> LED trigger) configure it as a panic indicator.
> >> >>
> >> >> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> >> >> Link: https://lore.kernel.org/r/20230805-topic-x13s_cam_led-v1-1-443d752158c4@linaro.org
> >> >> Signed-off-by: Bjorn Andersson <andersson@...nel.org>
> >> >> Signed-off-by: Sasha Levin <sashal@...nel.org>
> >> >
> >> >This is a new feature if anything, not a fix. Please drop from all
> >> >autosel queues.
> >>
> >> Not a feature, but hardware enablement.
> >
> >Call it what you will, but please drop it. Otherwise by that logic you'd
> >need to backport all devicetree patches (as well as most driver changes)
> >since they ultimately aim at enabling hardware.
> 
> Not all, only ones that re-use existing kernel driver but enable it for
> new hardware (i.e. adding a new pci-id/usb-id/dts entries).

Again, that's basically all our device-tree patches. And that can break
in all sorts of ways. So again, please drop. This does not belong in
stable.

Johan